Deployment and Associations
When installing an application on a target computer, you may want to associate a particular file type with your application. For example, if your application creates and uses files with an extension of .myfile, you would want your application to be associated with the .myfile file type so that when a user double-clicked a .myfile file, it would open in your application.
The deployment tools in Visual Studio include a File Types Editor, which allows you to specify document types and associate them with file extensions. In addition, you can specify the verbs or actions for each document type and specify MIME types for the document types for use in browsers. For more information, see.
During installation, settings specified in the File Types Editor will be updated on the target computer.